Surface electromyography of accessory inspiratory muscle activity during upper airway obstruction

• Material Type: 博士論文
• Title: Surface electromyography of accessory inspiratory muscle activity during upper airway obstruction
• Author/Editor: 金住, 雅彦
• Author Heading: 金住, 雅彦
• Publication, Distribution, etc.: 大阪歯科学会
• Alternative Title: 表面筋電図解析による上気道閉塞時の吸気補助筋活動の検討
• Degree grantor/type: 大阪歯科大学
• Date Granted: 2015-03-06
• Dissertation Number: 甲第760号
• Degree Type: 博士（歯学）
• Text Language Code: eng
• Subject Heading: Surface electromyography; Sternocleidomastoid muscle; Inspiratory muscle; Upper airway obstruction
• Target Audience: 一般
• Note (General): In a previous study, we examined how changes in breathing pattern affect the electromyographic (EMG) activity of accessory inspiratory muscles during spontaneous breathing. The present study aimed to create a device that simulates progressive upper airway obstruction to examine how such obstruction relates to EMG changes and respiratory movement. The subjects were 8 men and women between 26 and 47 years of age with normal cardiopulmonary function. A two-in-one airway pressure and flow monitor mask and a pulse oximeter were secured to the subjects, and electrodes were placed bilaterally on the sternocleidomastoid muscles. A heat and moisture exchange filter was attached to the tip of the airway pressure and flow monitor, and 1 mL/min of 2% methylcellulose solution was injected into the filter using a syringe pump. As airway resistance gradually increased over time, changes in accessory inspiratory muscle activity, airway pressure, expiratory flow, and percutaneous oxygen saturation were measured. Following spike count processing, changes in the spike count were calculated at one-minute intervals. Spike counts for the intervals between 5 and 6 minutes and 6 and 7 minutes were significantly greater than for the other intervals. Whereas the average airway pressure among all subjects increased over time, and increased significantly starting from the interval between 4 and 5 minutes, expiratory flow significantly decreased starting from this same interval. SpO_2 started to decrease from the interval between 5 and 6 minutes and was significantly lower over the next interval. These findings indicate that the sternocleidomastoid muscle may be actively recruited as an accessory inspiratory muscle during inspiratory movement associated with increased airway resistance. Furthermore, given the significant EMG changes observed before SpO_2 decreased, electromyography may be a more sensitive monitoring method of upper airway obstruction than pulse oximetry.; 2014年度
• Source: fulltext; https://osaka-dent.repo.nii.ac.jp/?action=repository_action_common_download&item_id=21&item_no=1&attribute_id=20&file_no=1; https://osaka-dent.repo.nii.ac.jp/?action=repository_action_common_download&item_id=21&item_no=1&attribute_id=20&file_no=2
• Access Restrictions: インターネット公開
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 大阪歯科大学 : 大阪歯科大学学術リポジトリ